Question: When calculating sample size, how can a researcher decide on the level of accuracy to use? What about level of confidence? What about variability with

When calculating sample size, how can a researcher decide on the level of accuracy to use? What about level of confidence? What about variability with a percentage?

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when calculation sample size, how can a researcher decide on the level of accuracy to use?

When calculating sample size, how can a researcher decide on the level of accuracy to use?What about level of confidence?What about variability with a percentage?

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